SCOR Working Group 17

Determination of Photosynthetic Pigments (joint with UNESCO)

J. Krey (Germany)
Other Full Members
Karl Banse (USA), Shun-ei Ichimura (Japan), George Humphrey (Australia), Shirley W. Jeffrey (Australia), and Leo Preston Vernon (USA)
Terms of Reference
  1. To consider experimental results relevant to the following points:

    • Type of filter for removing phytoplankton from sea water
    • Suction pressure to be applied to filter
    • Necessity for grinding or sonification
    • Extraction solvent
    • Addition of basic material. e.g., MgCO3 or dimethylaniline during extraction
    • Dessication of filters before extraction
    • Steam treatment of filters
    • Duration of extraction
    • Removal of extracted residue by centrifugation or filtration
    • Precision of chlorophyll a determination at 1.0, 0.1, and 0.02 µg levels under laboratory conditions
Financial Sponsors
  1. 4-6 June 1964 in Paris, France